package com.hafu.dao;


import com.hafu.model.SpInfo;
import com.hafu.util.DbUtil;
import com.hafu.util.StringUtil;

import java.math.BigDecimal;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

public class SpInfoDao {
    //添加商品
    public Boolean addSpInfo(SpInfo sp) {
        String sql = "insert into spinfo(name,price,sell_price) values(?,?,?)";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setString(1, sp.getName());
            preparedStatement.setBigDecimal(2, sp.getPrice());
            preparedStatement.setBigDecimal(3, sp.getSellPrice());

            int i = preparedStatement.executeUpdate();
            if(i>0){
                System.out.println("添加成功");
                return true;
            }else return false;
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }

        return false;
    }
    //删除商品信息
    public Boolean deleteSpInfo(int id){
        String sql = "delete from spinfo where id=?";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setInt(1,id);
            int i = preparedStatement.executeUpdate();
            if(i>0){
                System.out.println("删除成功");
                return true;
            }else return false;
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
        return false;
    }
    //更新商品信息
    public Boolean updateSpInfo(SpInfo sp){
        String sql = "update spinfo set name=?,price=?,sell_price=? where id=?";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setString(1,sp.getName());
            preparedStatement.setBigDecimal(2,sp.getPrice());
            preparedStatement.setBigDecimal(3,sp.getSellPrice());
            preparedStatement.setInt(4,sp.getId());
            int i=preparedStatement.executeUpdate();
            if(i>0){
                System.out.println("修改成功");
                return true;
            }else return false;

        }catch (SQLException throwables){
            throwables.printStackTrace();
        }
        return false;
    }
    //根据商品名称模糊查询商品信息
  public ArrayList<SpInfo> getSpInfoByName(SpInfo sp){
      String sql = "select * from spinfo";
      if (!StringUtil.isEmpty(sp.getName())){
            sql=sql +" where name like '%"+sp.getName()+"%'";
        }
        Connection conn = DbUtil.getConn();
        ArrayList<SpInfo> spList = new ArrayList<SpInfo>();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            ResultSet resultSet = preparedStatement.executeQuery();
            while (resultSet.next()) {
                int id = resultSet.getInt("id");
                String name = resultSet.getString("name");
                BigDecimal price = resultSet.getBigDecimal("price");
                BigDecimal sell_price = resultSet.getBigDecimal("sell_price");
                SpInfo spInfo1 = new SpInfo(id, name, price, sell_price);
                spList.add(spInfo1);
            }
        }catch (SQLException throwables){
            throwables.printStackTrace();
        }
        return spList;
  }

}
